Предмет: Алгебра, автор: sasshhhaas

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Ответы

Автор ответа: petrchech

Ответ:1)1 целая 2/3

2)<

3)а)3а - b. б) 12x + 1. в) 22b - 7

4)-7,5x + 1 = 6

Объяснение:

Автор ответа: gorvan2007

Ответ:

1)16•1/8+2•(-1/6)=2+(-1/3)=2-1/3=5/3

2)2+0.3•(-9)=2+(-0.27)=2-0.27=1.73

2-0.3•(-9)=2-(-0.27)=2+0.27=2.27

1.73<2.27

3) a)5a+7b-2a-8b=3a-b

б)3(4x+2)-5=12x+6-5=12x+1

в)20b-(b-3)+(3b-10)=20b-b+3+3b-10=22b-7

4)-6(0.5x-1.5)-4.5x-8=-3x+9-4.5x-8=1-7.5x

1-7.5•2/3=1-5=-4

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